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Best controller to interface camera over RS232

Hi all,
I have a project that is capturing image using a camera and string the images in micro SD card using a microcontroller.

Camera link is below.
http://www.tigal.com/1787

Interface: RS232
Min size of SD card support required is 1GB.

Since the camera sends the image data in
Snapshot Picture
Preview (RAW) Picture
JPEG Picture
these formats, I would like my controller to receive them as it is and store them in SD card either using file system or without file system (No complex processing).
Controlling the camera will be done by my controller.

My questions are:
1. Does a windows computer can read an image file without file system (Raw image)?
2. Which controller will be cheep and best for this project (Cheep evaluation board is better; I can’t invest more than 200USD).
3. To interface SD card, LPC is having dedicated pins for them. So selecting LPCxxxx series would be better option.

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